"Cars hit a new fuel economy record in 2015 while outperforming mandated greenhouse gas emissions limits, the Environmental Protection Agency (EPA) said.

Model-year 2015 cars averaged a carbon dioxide emissions standard that was 7 grams per mile higher than what the EPA required for that year, which was a 13 gram per mile improvement over the 2014 requirement.

A separate EPA report released Wednesday concluded that average fuel economy was 24.8 miles per gallon, 0.5 mpg higher than the previous year."

Timothy Cama reports for The Hill November 2, 2016. [2]